Exploiting push-pull strategy to combat the tea green leafhopper based on volatiles of Lavandula angustifolia and Flemingia macrophylla

【Author】

HAN Shan-jie;WANG Meng-xin;WANG Yan-su;WANG Yun-gang;CUI Lin;HAN Bao-yu;Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine,College of Life Sciences,China Jiliang University;Tea Research Institute,Yunnan Academy of Agricultural Sciences;

【Institution】

Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine,College of Life Sciences,China Jiliang University;Tea Research Institute,Yunnan Academy of Agricultural Sciences;

【Abstract】

Thirteen volatile compounds were identified from Flemingia macrophylla plants. Eight major components significantly attracted the tea green leafhoppers, Empoasca flavescens F. Based on their relative abundances, following synthetic blends were made for field experiments: 1) eight-component-attractant blend included Z-3-hexen-1-ol, Z-3-hexenyl acetate, Z-ocimene, Me SA, Z-3-hexenyl butyrate, dodecane, hexadecane and nonanal at 10, 10, 1, 11, 2, 6, 2 and 4 mg mL~(-1) in n-hexane, respectively; 2) four-component-attractant blend #1 contained hexadecane, Z-3-hexenyl acetate, Z-3-hexen-1-ol and nonanal at 2, 10, 10 and 4 mg mL~(-1) in n-hexane, respectively; 3) four-component-attractant blend #2 contained hexadecane, Z-3-hexenyl acetate, Z-3-hexen-1-ol and Me SA at 2, 10, 10 and 11 mg mL~(-1) in n-hexane, respectively. Thymol and 1-methoxy-4-methyl-2-(1-methylethyl)-benzene, identified from Lavandula angustifolia aeration samples, significantly repelled the leafhopper as strong repellents when tested alone or in combination at 10 mg mL~(-1). For field bioassays, each attractant lure was attached to a bud green sticky board hung from a bamboo stick at above tea plant level for catching the leafhoppers, whereas the repellent dispenser was tied to a tea branch inside tea clump for pushing the leafhoppers away from tea clumps. The results showed that the eight-component-attractant blend caught similar numbers of the leafhopper as did the four-component-attractant blend #1 at about 53–79 leafhoppers/trap/day, which were significantly higher than those on the hexane-control bud green sticky boards. Average leafhopper catches from un-baited sticky boards were about 51–73 leafhoppers/trap/day when pushed by the repellents placed inside tea plants, with the two-component-repellent blend being more effective than their single components. When the two-component-repellent blend was further tested with the three attractant blends in a push-pull fashion, average trap catches ranged from 62 to 92 leafhoppers/trap/day. Control efficacy on the leafhoppers within the push-pull zones increased progressively from day 1(43%) to day 5(73%). This push-pull approach might have a great potential as a green control strategy for combating the tea green leafhoppers.

【Keywords】

push-pull strategy;;attractants;;repellents;;Flemingia macrophylla;;tea green leafhopper;;tea plantation

References

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Total: 17 articles

  • [1] PU Xiaoying,FENG Mingguang (Institute of Microbiology,Institute of Applied Entomology,Zhejiang University,Hangzhou 310029,China)., Efficacy of emulsifiable formulations of two entomopathogenic fungi against small green leafhoppers on tea plant., Chinese Journal of Applied Ecology,
  • [2] LIU Jian-hua, GAO Li-xin, GAO Yu-qiong, HUO Xin (Guizhou Institute of Biotechnology Research and Development, Guiyang 550002, China), Study on the chemical constituents of volatile oil from Radix Flemingiae Philippinensis, Chinese Traditional Patent Medicine,
  • [3] ZHUANG Jia-xiang2,FU Jian-wei1,SU Qing-quan3,LI Jian-yu1,ZHAN Zhi-xiong1 (1. Institute of Plant Protection,Fujian Academy of Agricultural Sciences,Fuzhou 350013,China;2. Plant Protection Station,Agricultural Department of Fujian Province,Fuzhou 350001,China;3. College of Plant Protection,Fujian Agriculture and Forestry University,Fuzhou 350002,China), The Regional Diversity of Resistance of Tea Green Leafhopper,Empoasca vitis(Gthe),to Insecticides in Fujian Province, Journal of Tea Science,
  • [4] JIANG Lirong1,LIU Shouan1,HAN Baoyu1,2,*,OUYANG Liming3 1 Tea Research Institute of Chinese Academy of Agricultural Sciences,Hangzhou 310008,China 2 College of Life Sciences of China Jiliang University,Hangzhou 310018,China 3 Tianyu Tea Co.Ltd.in Jiande City of Zhejiang Province,Jiande 311600,China, Effect of odours from seven species of host and non-host plants on the adult behaviour of the tea geometrid,Ectropis obliqua (Prout), Acta Ecologica Sinica,

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